title: [A half-century in the field of preventive medicine and ecology. To the jubilee of I. M. Trachtenberg].
mesh_terms: D019550:Environmental Medicine / Q000266:history*; D049673:History, 20th Century; D049674:History, 21st Century; D014586:USSR; D014455:Ukraine
vernacular_title: Pivviku na terenakh profilaktychnoï meditsynyy ta ekolohiï. Do iubileiu I. M. Trakhtenberga.